IDM 4.5 latest AD driver (before the 4.5.1 patch, which did not include
an AD driver patch that I recall). Running on SLES hosts, AD is 2012,
and Exchange is 2013.

I implemented an add on for the Entitlement query to add an option of
Defer. Ok that was easy. Same as if I had hardcoded a specific value
of 'defer' for every user. So nothing in this code is relevant.

When a user is disabled, we remove the entitlement. Then they return.
We reset defer, and their mailbox gets recreated or moved/re-load balanced.

We want to just reconnect to the existing mailbox. Any tweaks, hints on
how to do this?